"Excited to be with the @Dodgers this season. Should be a great year! #keepworking Thank you @TopVelocity for believing in me," he wrote.

SB Nation site True Blue LA reported Aardsma signed a minor-league deal and will be one of 19 non-roster invitees to spring training.

The right-handed Aardsma had a 1.29 ERA with 11 saves in 33 games with the Cardinals' Triple-A affiliate in Memphis. From 2004-2013, in major-league stints with the Giants, Cubs, White Sox, Red Sox, Mariners, Yankees and Mets, Aardsma posted a 4.23 ERA and recorded 69 saves.

Free-agent reliever David Aardsma threw a bullpen session for scouts Monday, according to MLBTradeRumors.com.

Aardsma spent last season pitching in the Cardinals' minor-league system. He did not appear in the majors. The 33-year-old was able to hit 92 mph with his fastball during the session. It was attended by 18 scouts.

Veteran right-handed reliever David Aardsma is set to return to Triple-A Memphis this week after missing time due to surgery for a torn adductor muscle. He is hoping to earn a promotion to the Cardinals in September.

The 32-year-old Aardsma did not make the major league roster after his acquisition at the end of spring training. He was 2-0 with a 0.91 ERA in 28 games with the Redbirds.

Aardsma has been pitched with the team's Triple-A affiliate in Memphis, posting a 1.59 ERA in 17 innings of work. He could be a candidate for a callup if the Cardinals need bullpen help down the road, and it is not clear if he has another opt-out date in the future.